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  • Object type

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  • Description

    Longquan stoneware conical bowl with pale greyish green glaze.

  • Culture/period

  • Date

    • 12thC
  • Production place

  • Materials

  • Ware

  • Technique

  • Dimensions

    • Height: 54 millimetres
    • Diameter: 145 millimetres
  • Curator's comments

    Published PDF date : Southern Song 12th-13thCRoom 95 label text:

    PDF 210

    Conical bowl with celadon glaze

    Contemporary Southern Song craftsmen made both silver wares and lacquer wares in this form. This example, made from smooth, pale grey clay, is coated in a thick pale-bluish celadon glaze. Potters used up to four separate layers, developing the thickness of the iron-derived blue glaze. Longquan potters used porcelain stone and limestone as the main glaze ingredients but added wood ash to it. Later potters working at the Longquan kilns in the Yuan dynasty were unable to recreate these soft blue-green glazes which reached their zenith in the Southern Song.

    Stoneware, porcelain-type, with celadon glaze
    Longquan ware龍泉窯
    Longquan region, Zhejiang province 浙江省, 龍泉地區
    Southern Song dynasty, about AD 1127–1200


  • Bibliography

    • Medley 1977 p.15, no.26 bibliographic details
    • Pierson 1997 p.22, no.210 bibliographic details
  • Location


  • Conservation

    See treatments 

    Treatment date

    14 April 2009

    Treatment proposal

    Remove overpaint, reassess, clean, gap fill


    Old restoration. Excess retouching on original surface, has yellowed. Surface dirt, slightly scratched glaze. Chip on base, filled with a reddish material, possibly Shellac.

    Treatment details

    Surface cleaned with a 50:50 solution of de-ionised water and Industrial methylated spirits (ethanol, methanol) applied on cotton wool swabs and dried with a paper towel. Removed all overpaint with Acetone (propan-1-one/dimethyl ketone) on cotton wool swabs. Overpaint was covering lots of the original surface. White plaster fill under the overpaint, removed mechanically with a scalpel. A Shellac fill under the plaster fill, removed mechanically with a scalpel. The original celadon glaze surface had been abraded off theoutside of the object around the missing chip. Steam cleaned the missing area twice with de-ionised water to remove ingrained dirt, dried with paper towels. Gap filled missing area with Fynebond epoxy resin which was bulked heavily with Aerosil 805 fumed silica and coloured with artists' dry ground pigments. After curing the resin was cut back with a scalpel and polished with Micromesh fine abrasive cloth (silicon carbide/aluminium oxide) grades 1500, 1800, 2400, 3200, 3600, 4000, 6000, 8000 and 12000. The fill was polished with Greygate plastic polish on cotton wool. The fill was retouched with Golden acrylic paints and Golden porcelain restoration glaze. Object was further cleaned with a 50:50 solution of de-ionised water and Industrial methylated spirits (ethanol, methanol) applied on a cotton wool swab and dried with a paper towel.

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Longquan stoneware conical bowl with pale greyish green glaze.

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Object reference number: RRC38627

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